Multicolor nitrogen-doped carbon quantum dots and its application in the detection of Fe ion.

In this paper, nitrogen-doped carbon quantum dots (N-CQDs) are synthesized by the hydrothermal method. N-CQDs exhibit strong fluorescence, and N-CQDs are well dispersed in water as well as in various organic solvents. N-CQDs emit multi-color fluorescence from blue to red, with wavelengths in the range of 450-650 nm without the need for purification.

Ce/Ce-Doped ZrO/CuO Nanocomposite for Enhanced Photocatalytic Degradation of Methylene Blue under Visible Light.

In recent years, photocatalysis has been used as an environmentally friendly method for the degradation of organic pigments in water. In this study, Ce/Ce-doped ZrO/CuO as a mixed semiconductor oxide was successfully prepared by a one-step hydrothermal method. The Ce/Ce-doped ZrO/CuO has shown high degradation efficiency of methylene blue (MB), and the maximum degradation percentage was observed to be 94.

Characterization of structural and optical properties of Mn -doped Zn GeO nanorods as an efficient green phosphor for solid-state lighting.

A series of Mn -doped zinc germinate ZGO:xMn (x = 0-0.05) nanorods was synthesized successfully using a hydrothermal method. XRD revealed that crystal phases of the ZGO:xMn were rhombohedral and in the R-3 space group.

Luminescence of lemon-derived carbon quantum dot and its potential application in luminescent probe for detection of Mo ions.

This article reports on the first attempt of a systematic study on the synthesis of carbon dots (C-dots) for the potential applications in labeling and detection of molybdenum ion (Mo ). Carbon dots (C-dots) were synthesized directly via a simple hydrothermal method using lemon juices as carbon precursor with different temperatures to control the luminescence of C-dots. The obtained C-dots had strong green light emission and the ability to use its luminescence properties as probes for Mo detection application, which is based on Mo induced luminescence quenching of C-dots.

A CdS/ZnSe/TiO2 nanotube array and its visible light photocatalytic activities.

A novel CdS/ZnSe/TiO2 nanotube array (NTA) photoelectrode was prepared by deposition of ZnSe nanoparticles (NPs) using pulse electrodeposition technique onto a TiO2 NTA. By successive ion layer adsorption and reaction (SILAR), CdS quantum dots (QDs) deposit onto a ZnSe/TiO2 NTA photoelectrode. The as-prepared CdS/ZnSe/TiO2 NTA photoelectrode performance is significantly improved, which not only greatly extends spatial separation of charges, but also enhance the utilization efficiency of visible-light.